-30.65% is the change from 894 to 620
Calculation steps:
[( 620 - 894 ) ÷ 894] x 100 = -30.65%
Formula
Percentage change = [(620 - 894) / 894] x 100
Subtract the new number by the original number
620 - 894 = -274
-274 ÷ 894 = -0.30648769574944074
-0.30648769574944074 x 100 = -30.65%